IntelBX80684I58400
AMDFD837EWMHKBOX

6 Cores, 6 Threads @2.8GHz, Coffee Lake.
Release date: Q4 2017.

8 Cores, 8 Threads @3.3GHz, Piledriver.
Release date: Q3 2014.

Real World Speed
Performance profile from 200,602 user samples
196,345 User Benchmarks
Best Bench: 91% Base clock 2.8 GHz, turbo 3.85 GHz (avg)
Worst Bench: 75% Base clock 2.8 GHz, turbo 3.8 GHz (avg)
Poor: 75% Great: 91%
SPEED RANK: 69th / 1272
Gaming
Gaming 85%
Aircraft carrier
Desktop
Desktop 86%
Aircraft carrier
Workstation
Workstation 70%
Battleship
4,257 User Benchmarks
Best Bench: 71% Base clock 4 GHz, turbo 4 GHz (avg)
Worst Bench: 54% Base clock 3.3 GHz, turbo 3.4 GHz (avg)
Poor: 54% Great: 71%
SPEED RANK: 430th / 1272
Gaming
Gaming 63%
Destroyer
Desktop
Desktop 65%
Battle cruiser
Workstation
Workstation 50%
Yacht
Effective Speed
Effective CPU Speed
85.4 % Much faster effective speed.
+36%
62.9 %
Memory
Avg. Memory Latency
89.2 Pts Slightly lower memory latency.
+6%
83.9 Pts
1-Core
Avg. Single Core Mixed Speed
115 Pts Much faster single-core speed.
+71%
67.2 Pts
2-Core
Avg. Dual Core Mixed Speed
228 Pts Much faster dual-core speed.
+80%
127 Pts
4-Core
Avg. Quad Core Mixed Speed
442 Pts Hugely faster quad-core speed.
+93%
229 Pts
8-Core
Avg. Octa Core Mixed Speed
631 Pts Much faster octa-core speed.
+66%
379 Pts
Memory
OC Memory Latency
95.3 Pts +2% 93.2 Pts
1-Core
OC Single Core Mixed Speed
122 Pts Much faster OC single-core speed.
+52%
80.3 Pts
2-Core
OC Dual Core Mixed Speed
242 Pts Much faster OC dual-core speed.
+60%
151 Pts
4-Core
OC Quad Core Mixed Speed
475 Pts Much faster OC quad-core speed.
+67%
284 Pts
8-Core
OC Octa Core Mixed Speed
690 Pts Much faster OC octa-core speed.
+42%
487 Pts
Market Share
Based on 34,473,337 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.88 % Insanely higher market share.
+8,700%
0.01 %
Value
Value For Money
97.5 % Better value.
+26%
77.6 %
User Rating
UBM User Rating
90 % Much more popular.
+55%
58 %
Price
Price (score)
$172 $130 Cheaper.
+24%
Age
Newest
36 Months Much more recent.
+51%
73 Months
TDP
Thermal Design Power (TDP)
65 Watts Much more energy efficient.
+32%
95 Watts
Cores
CPU Processing Cores
6 cores 8 cores Much higher core count.
+33%
Threads
CPU Processing Threads
6 threads 8 threads Much higher thread count.
+33%
Lithography
Manufacturing process
14 nm Much newer manufacturing.
+56%
32 nm
Base Clock
Base Clock Speed
2.8 GHz 3.3 GHz Faster base frequency.
+18%
Turbo Clock
Turbo Clock Speed
4 GHz 4.3 GHz Slightly faster turbo frequency.
+8%
64-Core
OC Multi Core Mixed Speed
692 Pts Much faster OC 64-core speed.
+39%
497 Pts
64-Core
Avg. Multi Core Mixed Speed
638 Pts Much faster 64-core speed.
+65%
386 Pts
Series
CPU Architecture
Coffee Lake Piledriver
Socket
Motherboard Socket
FCLGA1151 AM3+
Graphics
Integrated Graphics
UHD 630 None
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The i5-8400 is a competitively priced hex-core processor from Intel’s 8th generation of Core processors (Coffee Lake). Along with the release of the unlocked i5-8600K, this is the first time that six-core processors have featured in the i5 line-up. Like the other Coffee Lake processors, the i5-8400 is based upon an improved version of Intel’s 14nm architecture which featured in both Skylake and Kaby Lake. Early benchmarks reveal that for average quad core usage (most games employ a maximum of four cores) the i5-8400 performs way above its pay grade. It achieves quad core mixed speeds close to Intel’s outgoing 2017 flagship the $300, quad-core, 8 thread i7-7700k, which to date has been a strong favourite for high-end gaming setups. On paper, the i5-8400 has a base clock of 2.8 GHz (Intel are significantly downplaying the performance of this SKU by giving it a relatively low nominal base clock), an all core boost of 3.8 GHz (this is the effective base clock figure that counts) and a single core boost of 4 GHz. This compares reasonably well to the i5-8600K which has a base clock of 3.6 GHz, all core boost of 4.1 GHz and a single core boost of 4.3 GHz. The i5-8400 also features 9MB of L3 cache and an energy-thrifty TDP of 65W. Priced at under $190, the i5-8400 offers fantastic value for money. Unfortunately, like the other Coffee Lake processors, the i5-8400 will require a new 300 series motherboard, and at the time of writing, the only available version is Intel’s high-end Z370 which isn't an ideal pairing for the i5-8400. The Z series motherboards are designed to cater for the unlocked and overclockable "K" SKUs. Cheaper 300 series motherboards will be available in 2018 at which time the 8400 will offer even better value for money. [Oct '17 CPUPro]

MORE DETAILS

The FX-8370E is an energy efficient Vishera eight core desktop processor based on AMD’s Piledriver architecture. It was launched in September 2014 and is the energy efficient version of the FX-8370 boasting a lower TDP of 95 Watts versus 125 Watts on the FX-8370. Comparing the 8370E and 8370 shows that the lower TDP comes at a cost: the 8370E scores a relatively lacklustre effective speed of 73 compared to the non-E version which scores 83. The lower score is consistent with the relative clock speeds: 3.3 GHz on the 8370E versus 4.0 GHz on the 8370. Priced the same as the 8370, there is a direct choice between being green or speedy. Or, if you don’t really need the above average multi-threaded performance that the 8370E offers, then you may be better off with the superb single-threaded performance from any number of Intel’s offerings. [Dec '14 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) October 2020 CPU Rankings.

We calculate effective speed which measures real world performance for typical users. Effective speed is adjusted by current prices to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top CPUs. [CPUPro]

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Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
How Fast Is Your CPU? (Bench your build) Size up your PC in less than a minute.

Welcome to our freeware PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best upgrades.

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How it works

  • - Download and run UserBenchMark.
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
  • - Compare your components to the current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
  • - Compare your in-game FPS to other users with your hardware.
  • - Share your opinion by voting.

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CPUGPUSSD
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Intel Core i5-10600K $260Nvidia GTX 1650S (Super) $170Samsung 860 Evo 250GB $50
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $63SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $34Corsair Vengeance LPX DDR4 3000 C15 2x8GB $69SanDisk Extreme 32GB $28
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $548SanDisk Extreme 16GB $28
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